You have left the carton of milk out of the refrigerator overnight and it has

spoiled. This is an example of a

A. Physical property

O

B. Physical change

OC. Chemical property

D. Chemical change

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The cells of plant and animals lack nuclei

Calculate the subatomic particles for a given atom. a. Sulfur (S) b. Cobalt (Co) C. Uranium (U) d. Lead (Pb)

Calculate the amount of work done, in joules, when 2.5 mole of H2O vaporizes at 1.0 atm and 25°C. Assume the volume of liquid H2O is negligible compared to that of vapor. (1 L·atm = 101.3 J)

Which gas sample would likely not act like an ideal gas? Choose one of the following, 1. A sample of oxgen gas at low pressure 2. A sample of oxygen gas at high temperature 3. A sample of argon gas at high pressure 4.

BF3 + Li2SO3 - - - > B2 (SO3) 3 + LiF. What is the coefficient of lithium fluoride in the balanced chemical reaction? A. 1 B. 2 C. 3 D. 4

Give 3-5 pieces of evidence to support why cloning is bad.

Nitrogen combines with oxygen to form nitrogen monoxide (no) and nitrogen dioxide (no2). a sample of no consists of 1.14 g of oxygen and 1 g of nitrogen.

The modern periodic table reflects many improvements to Mendeleev's original table. If Mendeleev's table was incorrect, why is it still studied in chemistry classrooms today?

Good evening everyone, I just wanted to know who's willing to talk to me

Explain how the nettle is adapted for defence and protection